以下是 HarmonyOS 5 環境下 Cordova 的熱門插件及核心代碼實現(綜合實際開發場景高頻使用):
一、核心工具類插件
1. ?高性能圖片壓縮插件?
?功能?:直接調用鴻蒙?ImageSource
?API 實現硬件級加速壓縮
?代碼實現?:
// Java 層(原生插件)
public PixelMap compressImage(String path, int quality) {ImageSource.SourceOptions options = new ImageSource.SourceOptions();ImageSource imageSource = ImageSource.create(path, options);ImageSource.DecodingOptions decodingOpts = new ImageSource.DecodingOptions();decodingOpts.quality = quality; // 壓縮質量 0-100return imageSource.createPixelmap(decodingOpts);
}:ml-citation{ref="1" data="citationList"}
JS 調用?:
cordova.exec(success => console.log("壓縮完成:", success),error => console.error("壓縮失敗", error),"ImagePlugin", "compressImage", ["/data/storage/image.jpg", 70]
);:ml-citation{ref="1" data="citationList"}
2. ?分布式設備通信插件?
?功能?:跨設備發現與數據傳輸(基于鴻蒙分布式軟總線)
?代碼實現?:
// JS 層封裝
discoverDevices() {return new Promise((resolve, reject) => {cordova.exec(devices => resolve(JSON.parse(devices)),error => reject(error),"HarmonyDistro", "discoverNearbyDevices", []);});
}:ml-citation{ref="3" data="citationList"}
?發送數據示例?:
cordova.exec(() => console.log("發送成功"),err => console.error("發送失敗", err),"HarmonyDistro", "sendData", ["device123", JSON.stringify({type: "command", value: 1})]
);:ml-citation{ref="3" data="citationList"}
二、安全領域必備插件
?國密算法安全插件?
?功能?:通過鴻蒙安全引擎實現 SM4 加密/簽名
?代碼實現?:
// Java 層(SM4Plugin.java)
public boolean execute(String action, JSONArray args, CallbackContext callback) {switch (action) {case "encrypt":String data = args.optString(0);String encrypted = securityEngine.sm4Encrypt(data); // 調用硬件加密callback.success(encrypted);return true;case "sign":byte[] fileData = args.optString(0).getBytes();String signature = securityEngine.generateSM2Signature(fileData);callback.success(signature);return true;}return false;
}:ml-citation{ref="2" data="citationList"}
?JS 調用加密?:
cordova.plugins.SM4Plugin.encrypt("敏感數據", encrypted => console.log("加密結果:", encrypted),error => console.error("加密失敗", error)
);:ml-citation{ref="2" data="citationList"}
三、性能優化插件
?多線程任務調度插件?
?功能?:使用?TaskDispatcher
?管理密集型任務
?代碼實現?:
// 在原生插件中啟動線程
TaskDispatcher globalTask = getGlobalTaskDispatcher(TaskPriority.DEFAULT);
globalTask.asyncDispatch(() -> {// 執行耗時運算String result = heavyCalculation();// 回傳結果到 JSPluginResult pluginResult = new PluginResult(PluginResult.Status.OK, result);pluginResult.setKeepCallback(true);callbackContext.sendPluginResult(pluginResult);
});:ml-citation{ref="3" data="citationList"}
開發建議
- ?車載場景?:優先集成吉利銀河框架的預置插件(含多屏協同/車輛傳感器接口)
- ?政務系統?:強制使用國密插件滿足安全合規要求
- ?性能關鍵模塊?:用?
TaskDispatcher
?替代傳統線程,避免阻塞 UI